Home / 88,148.52-121,561.56-57,880.44

Finding the Fourth Proportional to 88,148.52, 121,561.56 and 57,880.44

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Solution

The fourth proportional to 88,148.52, 121,561.56 and 57,880.44 is: 79,820.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,148.52 : 121,561.56 = 57,880.44 : x
  2. Step 2: Convert to fraction form
    88,148.52/121,561.56 = 57,880.44/x
  3. Step 3: Cross multiply
    88,148.52x = 121,561.56 × 57,880.44
  4. Step 4: Simplify right side
    88,148.52x = 7,036,036,579.89
  5. Step 5: Solve for x
    x = 7,036,036,579.89/88,148.52
  6. Step 6: Final answer
    x = 79,820.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.